CODEWITHSUNDEEP
dockercontainersopenshift
Ronaldo Lanhellas
Ronaldo Lanhellas

Reputation: 3356

Updating a ImageStream from Dockerhub Registry in Openshift

I have a template that defines a object "ImageStream":

{
      "apiVersion":"v1",
      "kind": "ImageStream",
      "metadata": {
        "name": "${APPLICATION_NAME}-img",
        "labels": {
          "app": "${APPLICATION_NAME}"
        }
      },
      "spec": {
        "tags": [
          {
            "name": "latest",
            "from": {
              "kind": "DockerImage",
              "name": "rlanhellas/${APPLICATION_NAME}"
            }
          }
        ]
      }
    }

So, after created I got the image inside openshift registry, the oc get is command return this:

$ oc get is
NAME                   IMAGE REPOSITORY                                                                                                   TAGS      UPDATED
safepark-netcore-img   default-route-openshift-image-registry.apps.us-east-2.starter.openshift-online.com/safepark/safepark-netcore-img   latest    About an hour ago

My original image within dockerhub and my pipeline tool always update the latest tag in dockerhub. But the ImageStream in openshift is not updated, so I got always a old version of my image in openshift and a new build is never triggered because the openshift image is not updated.

How can I "link" the ImageStream in OpenShift to my Dockerhub image and ensure that updated image in dockerhub will update the image in openshift ?

Important: I'm using Openshift Online with Free Plan.

Upvotes: 0

Views: 1467

Answers (1)

Chris Bolton
Chris Bolton

Reputation: 2314

If you want an image to automatically sync from one registry to your openshift registry, you can use importPolicy to achieve this.

The OpenShift 3.11 documentation explains the importPolicy functionality.

Set importPolicy to true to automatically sync the image.

apiVersion: v1
kind: ImageStream
metadata:
  name: ruby
spec:
  tags:
  - from:
      kind: DockerImage
      name: openshift/ruby-20-centos7
    name: latest
    importPolicy:
      scheduled: true
    apiVersion: v1
kind: ImageStream
metadata:
  name: ruby
spec:
  tags:
  - from:
      kind: DockerImage
      name: openshift/ruby-20-centos7
    name: latest
    importPolicy:
      scheduled: true

Upvotes: 2

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